Swapped these G05A-RX pads onto my BR-M8000 brakes and the difference is noticeable. Shimano claims 50% more wear resistance than the previous G03A, and after a few muddy rides they still look barely touched. Braking stays smooth and quiet, no squealing even when things get wet. Fitment was straightforward with the included spring. Good all-around resin pad for dry and wet conditions alike. If you ride a lot and want longer service intervals, these are worth it.